Suction cleaner agitator



Junyzl, 1931. CLSHANK 1,815,077

SUCTION CLEANER AGITATOR Filed Jan. 2, 1929 Char/e5 L, 577 6211A @Fmg Patented `luly 2l,` 1931 UNiTED sra'rs PATENT OFFICE CHARLES I1. SEAN-K, OF NORTH CANTON, OHIO, ASSIGNOR TO TH HOOVER COMPANY,

i A CORPORATION F OHIO SUCTION CLEANER AGITATOR Application mea January 2, 1929. serial No. 329,871.

This invention relates to suction cleaner rotors or agitators of the rotary type which are adapted to be mounted in the suction cleaner nozzle. 5 Heretofore agitators have necessarily been of a large diameter because of the impossibility in die casting of removing the small core from an agitator of small diameter. The use of a large diameter agitator necessitates a large nozzle and a consequent large nozzle* opening into which the carpet or article being cleaned, when the machine is in operation, is drawn. The area of floor covering drawn into thenozzle Varies directly With the nozzle Width and the resistance of movement of the suction cleaner over the floor is greatly increased, even to a degree Where it is burdensome, through the unnecessary displacement of too great an area of such covering. It is clear that With a small diameter agitator the nozzle dimensinscould -be decreased-With the resulting desirable v drop in resistance to movement of the machine.

As the cleaning action in a suction cleaner takes place over a limited area only of the nozzle opening and as a decrease in the size thereof would have no detrimental effect upon the cleaner ettciency the desirability of a relatively small nozzle is apparent and the Value of a slnall agitator which is still commercially feasible is obvious.

The object of my invention is, therefore,

the provisin of a suction cleaner agitator' combining all the desirable features of a relatively large agitator yet which is itself of small diameter.

A further object of my invention is topro- Vide a small diameter agitator for suction cleaners which is so designed and constructed that its small diameter does not prevent `its manufacture by ordinary manufacturing methods such as die'casting.

Other objects and advantages `Will be apparent as the description proceeds.

In the drawings accompanying and forming a part of this application wherein is illustrateda preferredembodiment of my invention:- i 50 Figure 1 represents a longitudinal' cross section through my invention disclosing the vparts in assembled relation.

Figure 2 is a transverse cross section at the line A A of Figure l.

Figure 3 is a transverse cross section at the line Bl3-of Figure 1.

In the drawings like parts are indicated by the same reference characters throughout.

In accordance with my invention the agitator is composed of a plurality of individual `interlittingmembers forming, in their assembled relation, a symmetrical whole. n Referring to Figure l reference characters 2 and 3 indicate the two interfitting semi-cylindrical members forming the body of the agi- -tator indicated lgenerally by 1. Part 2 constitutes a female member being provided atits ends with portions 4 and 5 between which the member 31is positioned. A brush seat 7 in each member is provided by reentrant Walls therein and is adapted to.v seat and retain a. brush 8. The brush is easily mounted in the seat 7 as the ends of the brush back are reduced in thickness and are adapted to be inserted a suiicient distance into either end of -the seat, said seat being greater in length than the brush back, to permit the opposite end of the brush back to be inserted into the opposite end of the lseat after which the brush may be centered. The brush seats 7, 7 are located on diametrically opposite sides of the i agitator and also on the opposite sides of the longitudinal center. Securing means 6 pass through each of the members 2 and 3 along the greatest diameter and are'secured to the bottom face 1l of the brush seat 7 in the opposing member and have their heads countersunk -to eliminate irregular projections upon the agitatorsurface. Beaterelements 9 9 are attached to the surface of the members 2 and 3 as in the usual agitator. Bearings lO-lO are shown secured in the members 4 and 5 which carry the agitator When in position in a cleaner. The surfaces of both members 2 and 3 are formed with an uninterrupted portion at substantially their respective centers which coact. when the agitator is assembled, to form suitable belt-receiving means in order that the agitator may receive a rotating force. It is seen from the foregoing description that I have provided an agitator comprising all the desirable features of the present day agitator Vand which, because of its novel design, includes no hollow members from which a core must be drawn longitudinally in die casting and therefore permits of construction in relatively small sizesv commercially.

I claim:

1. An agitator for suction cleaners comprising a body formed of a plurality of complementary members, one of said complementary members extending the length of said body and formed with integral ends, agitating elements carried by said body, and supporting means mounted solely on the integral ends of said one complementary member. A

2. An agitator for suction cleaners having a body-portion', complementary members forming said body-portion, reentrant portions in said complementary members forming brush seats, securing means holding said complementary members in assembled relation comprising rivets extending diametri- 25' cally in said body being secured at one end to a reentrant portion of a complementarl member, and brushes mounted in said brus seats.

3. In an agitator for suction cleaners a fe male body-member formed of a semi-cylindrical shell between its ends, cylindrical portions forming the ends of said female member, a male body-member formed of a curved hollow shell positioned between said cylindrical portions of the female member and complementing said female member in the formation of a cylindrical body portion'andsupporting means in the longitudinal axis of said body portion carried by Said female` member.

cember, 1928. l

portions extending to the longitudinal axis of said agitator and supports for said agitator carried by one of said body-members at the ends thereof inthe longitudinal axis.

Signed at North Canton, in the county of Stark, and State of Ohio, this 21st day of DeoHARLEs L. SHANK.

male body-member formed of a semi-cylindrical shell between its ends, cylindrical portions forming the ends of said female member,"a male-body-member formed of a semicylindrical shell positioned between said cylindrical portions of the 'female member and complementing said female member in the formation of a cylindrical body, reentrant portions formed in said male and female members constituting brush seats, brushes positloned in said seats and agitating elements mounted on said body-members.

,5. An agitator for suction cleaners comprising .af rotatable body, members compleinenting each other in the formation of said body, solid sections on one of said members Y forming the ends for said body and supporting means carried by said ends.

6. In an agitator for suction cleaners, a plurality of complementary body-members, uninterrupted surface p-ortios at substantially the longitudinal centers of said body-membersforming a belt-receiving pulley, longitudinally extendin reentrant ortions in said body-members torming brus seats upon opposite sldes of said pulley, said reentrant 

